/*
 * Java Genetic Algorithm Library (@__identifier__@).
 * Copyright (c) @__year__@ Franz Wilhelmstötter
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Author:
 *    Franz Wilhelmstötter (franz.wilhelmstoetter@gmail.com)
 */
package io.jenetics.ext.internal.util;

/**
 * @author <a href="mailto:franz.wilhelmstoetter@gmail.com">Franz Wilhelmstötter</a>
 * @version 5.0
 * @since 5.0
 */
public final class Names {
	private Names() {
	}

	/**
	 * Checks whether the given {@code name} is a valid (Java) identifier.
	 *
	 * @param name the name to check
	 * @return {@code true} if the given {@code name} is a valid identifier,
	 *         {@code false} otherwise
	 */
	public static boolean isIdentifier(final String name) {
		if (name.isEmpty()) {
			return false;
		}
		int cp = name.codePointAt(0);
		if (!Character.isJavaIdentifierStart(cp)) {
			return false;
		}
		for (int i = Character.charCount(cp);
			 i < name.length();
			 i += Character.charCount(cp))
		{
			cp = name.codePointAt(i);
			if (!Character.isJavaIdentifierPart(cp)) {
				return false;
			}
		}
		return true;
	}

}
